Q: Is there a freshness test to see if eggs are too old to use? Will they float or sink if they are fresh? Can you add salt to the water to get a more accurate test?

A: NO, there is no water test. There is a carefully conducted brine test used for hatching purposes but it doesn't check the freshness of eggs. The best way to keep track of the freshness of your eggs is to find the expiration date, pack date and or keep track of the date you purchased the eggs. Eggs are still fresh 4 – 5 weeks beyond the pack date.